US5288316A - Non aqueous dispersion ink with improved shelf life, tack and flow - Google Patents

Non aqueous dispersion ink with improved shelf life, tack and flow Download PDF

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Publication number
US5288316A
US5288316A US07/956,209 US95620992A US5288316A US 5288316 A US5288316 A US 5288316A US 95620992 A US95620992 A US 95620992A US 5288316 A US5288316 A US 5288316A
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US
United States
Prior art keywords
weight
non aqueous
dispersion ink
ink composition
aqueous dispersion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/956,209
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English (en)
Inventor
Judith D. Auslander
Norman C. Hochwalt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pitney Bowes Inc
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Pitney Bowes Inc
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Publication date
Application filed by Pitney Bowes Inc filed Critical Pitney Bowes Inc
Priority to US07/956,209 priority Critical patent/US5288316A/en
Assigned to PITNEY BOWES INC. reassignment PITNEY BOWES INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HOCHWALT, NORMAN C., AUSLANDER, JUDITH D.
Priority to CA002107641A priority patent/CA2107641C/fr
Priority to EP93307889A priority patent/EP0592182B1/fr
Priority to DE69327289T priority patent/DE69327289T2/de
Priority to AU48820/93A priority patent/AU660593B2/en
Application granted granted Critical
Publication of US5288316A publication Critical patent/US5288316A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/08—Printing inks based on natural resins

Definitions

  • the ink One of the components of the printing system that has required extensive modification is the ink.
  • a pad or roller made of a porous material is supplied with ink for the purpose of transferring the ink to a printhead.
  • the printing pad may be one which is self contained or it may be one that is periodically supplied with ink from a reservoir.
  • the problems in producing a satisfactory fluorescent ink are compounded because a plurality of dyes and pigments are required for achieving good color, fill in, edge acuity and the other qualities required from an ink.
  • One of the major problems associated with inks is aging which results in printing that has a change in color and intensity with the passing of the time the ink is stored.
  • ink that overcomes the aging problem and shows low environmental sensitivity (high humidity and low and high temperatures), low tackiness and flow properties, material compatibility and paper dust resistance would be advantageous. Another consideration is that the ink pad must function in an open environment without drying for at least six months; therefore, the ink solvents should be non volatile.
  • Non aqueous dispersion ink formulations have been discovered that are nontoxic and have flow properties which substantially reduce the tendency of the ink to cause plugging in an inking pad.
  • Ink pad life has a variability caused mainly by the inherent properties of the ink with which it is used.
  • the inking pad may be assembled with two layers of foam, the first layer serving as an ink reservoir layer and the second layer serving as a metering layer which contacts the print head. Because of its high density and smaller pore size, the metering layer can act as a filter as a consequence of the ink concentrating at the interface of the two layers. As a result, plugging tends to occur.
  • plugging is the fact that particles of the ink are captured within the pores of the inking member and thus prevent the flow of ink.
  • the ink formulation of the instant invention is based on organic pigments dispersed in rosin esters or a combination of organic pigments dispersed in rosin esters and amino formaldehyde resin dispersed in an alkyd resin.
  • the resulting color of these inks can be red, blue, green or black. It has been found that these ink formulations reduce the effects of paper dust accumulations because the solvents of the instant ink formulations are non drying on the printing elements and maintains printing elements in a wet state.
  • the solvent has emollient properties. This wet state causes the flushing of elements resulting in paper dust being carried away. Lower concentrations of dissolved resin produces a lower tack ink which results in less paper dust attraction in the ink.
  • the ink formulations of the instant invention have low environmental sensitivity due to small variation of the viscosity in the operating temperature range of 5° to 45° C. and the low hygroscopicity of the solvents.
  • the preferred embodiment of the invention is the inclusion of an emollient solvent in the ink formulation.
  • an emollient solvent in the ink formulation.
  • Use of this type of solvent has been found to be compatible with the pigments used to produce the ink, provides low toxicity, ease of fabrication of the ink, is inert to materials in the inking system and provides a non-drying ink.
  • Another advantage to the inclusion of an emollient solvent is that it is non-volatile and consequently results in the inking pad not drying.
  • the formulations of the instant invention provide inks with improved print quality, are inert to materials used in a printer such as inker foams and rubber, low tack, good shelf life stability, and good flow through porous foam materials.
  • the inks of the instant invention have an acceptable shelf life.
  • the aged samples show no settling after two weeks of accelerated testing.
  • the aging of the inks by temperature shock shows no settling for the inks during two weeks of accelerated testing that simulated one year-of aging by varying the temperature between 70° C. to -2° C., every four hours of the working day.
  • the dual inker foam described above that is used in high speed flat bed systems is made of a polychloroprene foam bottom layer.
  • the top layer is made of polyethylene sintered foam.
  • the rubber used in the printing elements is made of polybutadiene acrylonitrile rubber, which is plasticized with dibutyl phthalate.
  • the solvents used in the instant ink formulations are inert to all these materials.
  • the print head should be usable for ten million prints, or ten years, and the pad materials should be compatible with the inks for six months.
  • the pigment dispersion used in the ink formulation is stabilized by using easily dispersible pigments predispersed in a vehicle such as a rosin ester carrier, soy bean oil alkyds, non-ionic surfactants and other type of alkyds.
  • a vehicle such as a rosin ester carrier, soy bean oil alkyds, non-ionic surfactants and other type of alkyds.
  • An example of such a pigment dispersion is triazine aryl sulphonamide paraformaldehyde resin dispersed in linseed oil alkyd raisin.
  • the non aqueous pigment dispersion used in the ink formulation is stabilized by using easily dispersible non fluorescent organic pigments predispersed in a vehicle such as rosin ester carrier, linseed oil alkyds, or other type of alkyds.
  • the rosin ester dispersants are preferable because of the wide range of compatibility with solvents and resins.
  • the non-fluorescent pigments also can be predispersed in a non-ionic surfactant such as oleyl alcohol ethoxylate and the like.
  • the solvent system is preferably of the emollient solvent type.
  • the solvent system can be composed of a mixture of low molecular weight polypropylene glycol, 10 to 30%, polyoxypropylene stearyl ether (the emollient solvent), 70 to 90%, and nonyl phenoxy polyoxyethylene ethanol, up to 0.5%. All percentages in this disclosure and the accompanying claims are in weight percent.
  • Other solvents that can be used are polyoxypropylene (10) cetyl ether, castor oil, soy bean oil and oleic acid.
  • the pigment dispersion can be further stabilized with a neoalkoxy titanate coupling agent and emulsifiers such as nonyl phenoxy polyethoxylated alcohols, which emulsifiers have an HLB (hydrophylic lipophylic balance) value from 2 to 15.
  • a neoalkoxy titanate coupling agent and emulsifiers such as nonyl phenoxy polyethoxylated alcohols, which emulsifiers have an HLB (hydrophylic lipophylic balance) value from 2 to 15.
  • HLB hydrophylic lipophylic balance
  • the formulation of the instant invention involves unique color combinations based on mixtures of organic pigments such as the phthalocyanines and results in strong colors with high purity.
  • organic pigments such as the phthalocyanines
  • results in strong colors with high purity are given in the General Composition table hereinafter.
  • the selection of the phthalocyanines for the blue ink is based on their dichroic properties. They reflect highly in the red region of the spectrum where the transmitted color is much greener.
  • the organic pigments such as the phthalocyanines can be used in different forms such as powder or chips or predispersed pigments in rosin esters and organic pigments flushed with non-ionic surfactants such as oleyl alcohol ethoxylates.
  • the average particle size of the organic pigments is between 0.1 and 0.4 ⁇ for at least 98% of the particles.
  • Another component that may be included as an additive to the ink formulations is fumed silica with grafted polysiloxane groups. This additive controls the thioxtrophy of the ink, reduces surface tension and flattens the variation of the viscosity at different temperatures. At the same time, it reduces the hygroscopicity of the ink.
  • the present invention provides a new class of inks that are compatible with the polymeric materials used in contemporary printers. Examples of such inks are as follows:

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
US07/956,209 1992-10-05 1992-10-05 Non aqueous dispersion ink with improved shelf life, tack and flow Expired - Lifetime US5288316A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US07/956,209 US5288316A (en) 1992-10-05 1992-10-05 Non aqueous dispersion ink with improved shelf life, tack and flow
CA002107641A CA2107641C (fr) 1992-10-05 1993-10-04 Encre fluorescente non aqueuse ayant une duree de vie en pot, un pouvoir d'accrochage et une fluidite accrus
EP93307889A EP0592182B1 (fr) 1992-10-05 1993-10-05 Encre non aqueuse sous forme de dispersion
DE69327289T DE69327289T2 (de) 1992-10-05 1993-10-05 Nicht-wässrige Dispersion-Druckfarbe
AU48820/93A AU660593B2 (en) 1992-10-05 1993-10-05 Non aqueous dispersion ink with improved shelf life, tack and flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/956,209 US5288316A (en) 1992-10-05 1992-10-05 Non aqueous dispersion ink with improved shelf life, tack and flow

Publications (1)

Publication Number Publication Date
US5288316A true US5288316A (en) 1994-02-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
US07/956,209 Expired - Lifetime US5288316A (en) 1992-10-05 1992-10-05 Non aqueous dispersion ink with improved shelf life, tack and flow

Country Status (5)

Country Link
US (1) US5288316A (fr)
EP (1) EP0592182B1 (fr)
AU (1) AU660593B2 (fr)
CA (1) CA2107641C (fr)
DE (1) DE69327289T2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5880214A (en) * 1993-01-28 1999-03-09 Riso Kagaku Corporation Emulsion inks for stencil printing
WO2000020521A1 (fr) * 1998-10-06 2000-04-13 Minnesota Mining And Manufacturing Company Encres piezo-electriques pour impression par jet d'encre et procedes de fabrication et d'utilisation de ces encres
US6503965B1 (en) 2000-08-24 2003-01-07 Bic Corporation Solvent-based non-fluorescent ink for writing instruments based upon pigment dispersions in non-aqueous solvents
US6685961B1 (en) 2000-10-24 2004-02-03 Banner Pharmacaps, Inc. Colored gelatin-based formulations and method
US20050139128A1 (en) * 2003-12-31 2005-06-30 Sung Edward H. Process for conditioning azo pigments
US20110169887A1 (en) * 2008-06-25 2011-07-14 Kabalnov Alexey S Inkjet ink and method of making the same
WO2019084231A1 (fr) * 2017-10-26 2019-05-02 Sanford L.P. Formulations d'encre opaque et instruments d'écriture associés

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060162612A1 (en) 2005-01-25 2006-07-27 Kabalnov Alexey S Pigments modified with surface counter-ions
DE102005022425B4 (de) * 2005-05-10 2009-10-22 J. S. Staedtler Gmbh & Co. Kg Tinte mit verlängerter "Cap-Off-Time"
CN107698202B (zh) * 2016-08-09 2020-11-06 立邦涂料（中国）有限公司 一种低尘环保型彩色水泥基粉料及防水材料

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970965A (en) * 1955-12-14 1961-02-07 Switzer Brothers Inc Printing inks and vehicles therefor
US3928226A (en) * 1974-01-16 1975-12-23 Pitney Bowes Inc Multi-detectable ink compositions and method of use
US4361843A (en) * 1981-03-27 1982-11-30 Exxon Research And Engineering Co. Ink jet compositions and method
US4386961A (en) * 1981-12-17 1983-06-07 Exxon Research And Engineering Co. Heterologous ink jet compositions
US4400215A (en) * 1981-12-07 1983-08-23 Exxon Research And Engineering Co. Ink jet ink formulation for reduced start-up problems
US4531976A (en) * 1981-12-17 1985-07-30 Exxon Research And Engineering Co. Heterologous ink jet ink compositions
US4767459A (en) * 1986-10-10 1988-08-30 Imperial Chemical Industries Plc Ink
US4793264A (en) * 1981-12-07 1988-12-27 Dataproducts Corporation Low corrosion impulse ink jet ink containing anti-oxidant
US4822418A (en) * 1981-03-27 1989-04-18 Dataproducts Corporation Drop on demand ink jet ink comprising dubutyl sebecate
US5114478A (en) * 1991-01-07 1992-05-19 Pitney Bowes Inc. Homogenous ink composition

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682688A (en) * 1970-06-17 1972-08-08 Du Pont Method of fixing a chelated organic titanate vehicle to a substrate
US4079026A (en) * 1977-06-20 1978-03-14 Hercules Incorporated Printing inks and process for using the same
JPS58152073A (ja) * 1982-03-04 1983-09-09 Toray Ind Inc 乾式平版印刷用インキ組成物
US5290348A (en) * 1992-10-05 1994-03-01 Pitney Bowes Inc. Non aqueous fluorescent dispersion ink with improved shelf life, tack and flow

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970965A (en) * 1955-12-14 1961-02-07 Switzer Brothers Inc Printing inks and vehicles therefor
US3928226A (en) * 1974-01-16 1975-12-23 Pitney Bowes Inc Multi-detectable ink compositions and method of use
US4361843A (en) * 1981-03-27 1982-11-30 Exxon Research And Engineering Co. Ink jet compositions and method
US4822418A (en) * 1981-03-27 1989-04-18 Dataproducts Corporation Drop on demand ink jet ink comprising dubutyl sebecate
US4400215A (en) * 1981-12-07 1983-08-23 Exxon Research And Engineering Co. Ink jet ink formulation for reduced start-up problems
US4793264A (en) * 1981-12-07 1988-12-27 Dataproducts Corporation Low corrosion impulse ink jet ink containing anti-oxidant
US4386961A (en) * 1981-12-17 1983-06-07 Exxon Research And Engineering Co. Heterologous ink jet compositions
US4531976A (en) * 1981-12-17 1985-07-30 Exxon Research And Engineering Co. Heterologous ink jet ink compositions
US4767459A (en) * 1986-10-10 1988-08-30 Imperial Chemical Industries Plc Ink
US5114478A (en) * 1991-01-07 1992-05-19 Pitney Bowes Inc. Homogenous ink composition

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5880214A (en) * 1993-01-28 1999-03-09 Riso Kagaku Corporation Emulsion inks for stencil printing
WO2000020521A1 (fr) * 1998-10-06 2000-04-13 Minnesota Mining And Manufacturing Company Encres piezo-electriques pour impression par jet d'encre et procedes de fabrication et d'utilisation de ces encres
US6113679A (en) * 1998-10-06 2000-09-05 3M Innovative Properties Company Piezo inkjet inks and methods for making and using same
AU746181B2 (en) * 1998-10-06 2002-04-18 Minnesota Mining And Manufacturing Company Piezo inkjet inks and methods for making and using same
US6379444B1 (en) 1998-10-06 2002-04-30 3M Innovative Properties Company Piezo inkjet inks and methods for making and using same
US6503965B1 (en) 2000-08-24 2003-01-07 Bic Corporation Solvent-based non-fluorescent ink for writing instruments based upon pigment dispersions in non-aqueous solvents
US6685961B1 (en) 2000-10-24 2004-02-03 Banner Pharmacaps, Inc. Colored gelatin-based formulations and method
US20050139128A1 (en) * 2003-12-31 2005-06-30 Sung Edward H. Process for conditioning azo pigments
US20110169887A1 (en) * 2008-06-25 2011-07-14 Kabalnov Alexey S Inkjet ink and method of making the same
US8430475B2 (en) 2008-06-25 2013-04-30 Hewlett-Packard Development Company, L.P. Inkjet ink and method of making the same
WO2019084231A1 (fr) * 2017-10-26 2019-05-02 Sanford L.P. Formulations d'encre opaque et instruments d'écriture associés
US12209192B2 (en) 2017-10-26 2025-01-28 Sanford, L.P. Opaque ink formulations and associated writing instruments

Also Published As

Publication number Publication date
EP0592182A1 (fr) 1994-04-13
DE69327289D1 (de) 2000-01-20
AU4882093A (en) 1994-04-21
CA2107641A1 (fr) 1994-04-06
CA2107641C (fr) 2004-12-07
DE69327289T2 (de) 2000-05-18
EP0592182B1 (fr) 1999-12-15
AU660593B2 (en) 1995-06-29

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